OIL PRESSURE SENSOR FAULTED HIGH
For a complete wiring diagram Refer to Section 8W.
Diagnostic Test
- When Monitored:
With the ignition on.
- Set Condition:
Oil Pressure Sensor voltage high.
| Possible Causes |
| (K302) OIL PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE |
| (K302) OIL PRESSURE SENSOR SIGNAL CIRCUIT OPEN |
| (K302) OIL PRESSURE SENSOR SIGNAL CIRCUIT OPEN |
| (K300) SENSOR GROUND CIRCUIT OPEN |
| OIL PRESSURE SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Diagnostic Test
1.OIL PRESSURE SENSOR VOLTAGE ABOVE 4.92 VOLTSIs the voltage above 4.92 volts?
Yes
- Go To 2
No
- Refer to the INTERMITTENT CONDITION Diagnostic Procedure.
- Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
2.OIL PRESSURE SENSOR
Is the voltage below 1.0 volt with the jumper wire installed?
Yes
- Replace the Oil Pressure Sensor.
- Perform the BODY VERIFICATION TEST. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- Go To 3
NOTE: Remove the jumper wire before continuing.
3.(K302) OIL PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
Is the voltage above 5.2 volts?
Yes
- Repair the short to battery voltage in the (K302) Oil Pressure Sensor Signal circuit.
- Perform the BODY VERIFICATION TEST. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- Go To 4
4.(K302) OIL PRESSURE SENSOR SIGNAL CIRCUIT OPEN
Is the resistance below 5.0 ohms?
Yes
- Go To 5
No
- Repair the open in the (K302) Oil Pressure Sensor Signal circuit.
- Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
5.(K302) OIL PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO THE (K301) 5–VOLT SUPPLY CIRCUIT
Is the resistance below 100 ohms?
Yes
- Repair the short between the (K301) 5-volt Supply circuit and the (K302) Oil Pressure Sensor Signal circuit.
- Perform the BODY VERIFICATION TEST. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- Go To 6
6.(K300) SENSOR GROUND CIRCUIT OPEN
Is the resistance below 5.0 ohms?
Yes
- Go To 7
No
- Repair the open in the (K300) Sensor ground circuit.
- Perform the BODY VERIFICATION TEST. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
7.BCM
NOTE: Before continuing, check the BCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary.
Were there any problems found?
Yes
- Repair as necessary.
- Perform the BODY VERIFICATION TEST. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- Replace and program the Powertrain Control Module per Service Information.
- Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)